Build: package.json and changelog update for 1.0.0

Author: nzakas

CHANGELOG.md

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+v1.0.0 - July 28, 2016
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+* 0315471 Build: Add release script (Nicholas C. Zakas)
+* f2575d8 Fix: ensure consistent linebreaks when testing transforms (#6) (Vitor Balocco)
+* f8f5c23 Breaking: Drop support for node < 4 (fixes #4) (#5) (Vitor Balocco)
+* 6219d0c Fix: use __dirname to find transform files (refs #2) (#3) (Vitor Balocco)
+* a091907 New: Initial commit (Vitor Balocco)
+* 21201a2 Create README.md (Ilya Volodin)
+